Abstract: A system for creating and displaying an advertising message on an automobile radio antenna using a plurality of symbolic fixtures to form a vertical message. In the preferred embodiment, each symbolic fixture includes a clip placed in a crevice in a lateral surface of the fixture, so each fixture can be snapped out without sliding the fixture over the antenna. The clips optionally include a removal tab which may be either hidden or visible to assist in easy removal of the symbolic fixtures when changing the displayed message.